# MSTA Mobile vs Events MOSBA

The clearest difference is iOS requirement: MSTA Mobile at 15.1 against Events MOSBA's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | MSTA Mobile | Events MOSBA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 46 MB | 77 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Missouri State Teachers Association](https://appshunter.io/developer/1438429518) | [Missouri School Boards Association](https://appshunter.io/developer/1495397392) |

## What reviewers say

### MSTA Mobile

[App page](https://appshunter.io/ios/app/msta-mobile/id6478709610)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Events MOSBA

[App page](https://appshunter.io/ios/app/events-mosba/id6761209868)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MSTA Mobile free?

MSTA Mobile is free to download, with no in-app purchases.

### Is Events MOSBA free?

Events MOSBA is free to download, with no in-app purchases.

### Do MSTA Mobile or Events MOSBA have ads?

Neither MSTA Mobile nor Events MOSBA shows ads.

### Which is updated more often, MSTA Mobile or Events MOSBA?

MSTA Mobile ships an update every 3 months, and Events MOSBA every 3 months. Most recently, MSTA Mobile was updated on October 27, 2026 and Events MOSBA on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*